The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2001
Filed:
Feb. 26, 1999
Terence Michael Hedley, Bedfordshire, GB;
Walk Off Mats Limited, Bedfordshire, GB;
Abstract
The invention provides a process for making a mat particularly a washable dust control mat, having a fabric layer (,) and a rubber backing layer (,) with a border (,) extending beyond the fabric layer (,) using a press which heat-cures the rubber and adheres it to the fabric and employs an inflatable bag (,) to apply pressure by pressing the layers against a heated platen (,), wherein a frame (,) defining the extent of the border (,) is located between the bag and the platen, and wherein the bag applies pressure to the assembled layers including the border portion of the backing layer. The frame (,) can act as a dam for preventing outward movement of the rubber and provide an integral thickened border; in some cases it also provides a guillotine for trimming the rubber during pressing.